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Note 7 - Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2025

Notes Tables

Schedule of Intangible Assets and Goodwill [Table Text Block]

														Foreign
		December 31,												currency				March 31,
		2024				Amortization				Additions				translation				2025
Indefinite-lived intangible assets:
Investment management agreements		$	2,056.5			$	—			$	—			$	9.8			$	2,066.3
Trademarks			360.0				—				—				—				360.0
Definite-lived intangible assets:
Client relationships			86.1				—				—				1.3				87.4
Investment management agreements			28.0				—				—				—				28.0
Trademarks			5.5				—				—				—				5.5
Accumulated amortization			(62.8	)			(2.8	)			—				(1.2	)			(66.8	)
Net intangible assets		$	2,473.3			$	(2.8	)		$	—			$	9.9			$	2,480.4
Goodwill		$	1,550.4			$	—			$	16.0			$	20.8			$	1,587.2

										Foreign
		December 31,								currency				March 31,
		2023				Amortization				translation				2024
Indefinite-lived intangible assets:
Investment management agreements		$	2,064.8			$	—			$	(4.2	)		$	2,060.6
Trademarks			360.0				—				—				360.0
Definite-lived intangible assets:
Client relationships			68.6				—				(1.3	)			67.3
Accumulated amortization			(62.1	)			(0.1	)			1.0				(61.2	)
Net intangible assets		$	2,431.3			$	(0.1	)		$	(4.5	)		$	2,426.7
Goodwill		$	1,290.3			$	—			$	(8.1	)		$	1,282.2

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Future amortization		Amount
2025 (remainder of year)		$	8.3
2026			11.1
2027			11.1
2028			8.9
2029			2.6
Thereafter			12.1
Total		$	54.1

X

- Definition

Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/350-30/tableOfContent

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/350-20/tableOfContent

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- Definition

Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-SubTopic 30
-Topic 350
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-2

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